Paleo Diet

Paleo Diet

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Loren Cordain wrote the Paleo Diet based on his research about the probable diet of our human ancestors.

The concept of the Paleo approach to eating is that humans were evolving for millions of years prior to the Neolithic period, which is when agricultural practices changed our diet considerably.

Cordain affirms that grains were not a part of the prehistoric human diet and were only introduced at the time of the agricultural revolution 10000 years ago.

In the past 200 years the industrial revolution has changed our diet to an even greater degree with the introduction of processed and artificial foods as well as an increase in the amount of food that is available to us due to our ability to store foods for a long time.

Cordain claims that these changes have created a detrimental effect on our health and declares that they are responsible for the diseases of modern civilization including obesity, diabetes, heart disease and cancer.

Quick tip: Try the Paleo Plan, one of the best online programs we’ve found.

Paleo Diet Basics

Cordain states that the genetics of humans is best adapted to the diet of our human ancestors prior to the introduction of agriculture.

As such the Paleo diet is based on eating foods that would be available to humans in the absence of all technology so as to mimic the diet of hunter-gatherer societies as much as possible.

Eat Like a Caveman

Many foods are restricted on this diet for the reason that that they were not available to our prehistoric ancestors. These include all processed foods, sugar, salt, grains, legumes, dairy products, coffee and alcohol.

Non-Paleolithic Foods

There are 5 main food groups that the paleo diet believes aren’t part of human evolution.

  1. Grains
  2. Legumes
  3. Dairy
  4. Refined sugars
  5. Refined oils

These foods have the most instances of causing health problems like allergies.

Potatoes are also restricted because the varieties available now are genetically and nutritionally altered and are much higher in carbohydrates in comparison to those available in Stone Age period.

While eliminating grains and refined carbohydrates does make this a relatively low carbohydrate diet, it is less restrictive than other diet plans of this nature such as ‘Atkins‘ and ‘Protein Power’ because most fruit and vegetables are allowed in unlimited portions.

Paleo Answer

The Paleo Answer is the latest book by Loren Cordain.

It expands on the principles outlined in Cordain’s earlier books, highlighting the benefits of eating like our caveman ancestors.

Cordain explains that this program is “about adopting a modern healthy diet and lifestyle consistent with our genetic heritage as hunter-gatherers”.

Primarily the book focuses on how to eat like our Stone Age ancestors by consuming the same food groups they did.

Cordain applies the latest research to topics including:

  • The Truth About Saturated Fat
  • Meal Timing and Intermittent Fasting
  • Calorie Restriction
  • The Pitfalls of Vegetarianism
  • Negative Health Effects of Grains, Legumes, Potatoes and Dairy Products
  • The Food-Autoimmune Disease Connection

The Paleo Answer 7-Day Diet Plan

The meal plan includes suggestions for three meals and two snacks daily. Recipes are not provided but readers are referred to “The Paleo Diet Cookbook”.

If you are strict with the diet 85 percent of the time you can realize significant improvements in your health. The other 15 percent – which equates to about three meals a week – can include foods not normally allowed.

Also provided in the seven-day plan are health tips and specific recommendations for exercise and relaxation.

Paleo Diet For Athletes

Cordain recognizes that endurance athletes require a higher intake of carbohydrates in order to replenish fuel stores after a long and intense workout.

As such the program for athletes makes changes to the basic program to allow the intake of some foods that are not included in a Paleo Diet.

The major adjustment to the program is that certain high glycemic index carbohydrate foods are included during the immediate post-workout period. For the remainder of the day the dietary pattern is the same as the general Paleo Diet program.

The Paleo Diet For Athletes outlines five periods of the day in relation to the training schedule of the athlete and explains the nutritional goals of each stage.

  • Stage 1 – Eating Before Exercise
  • Stage 2 – Eating During Exercise
  • Stage 3 – Eating 30 Minutes Post Exercise
  • Stage 4 – Short-Term Post Exercise
  • Stage 5 – Long-Term Post Exercise

For each stage he outlines in detail the specific foods to be eaten and amounts to be consumed as well as the recommended nutrient composition of the meal.

Prehistoric Foods

Here are some of the Paleo Diet suggested foods:
Turkey, shrimp, crab, halibut, salmon, lamb, lean beef, omega 3 eggs, pecans, almonds, walnuts, avocado, spinach, tomato, cauliflower, broccoli, lettuce, berries, apples, pineapple, peaches, olive oil, wine, herb tea, mineral water. Honey, dried fruit and natural oils are permitted in very small portions.

Sample Diet Plan


Omelet with spinach and mushroom

Morning Snack

Fresh berries


Grilled salmon
Large mixed vegetable salad and flax oil dressing

Afternoon Snack

Raw carrots and celery


Grilled chicken
Steamed broccoli
Tomato salad

Evening Snack

Baked walnut cinnamon apples

Costs and Expenses

An online version called Paleo Plan is available here.

The Paleo Diet book retails at $14.95.

The Paleo Answer retails for $25.95

Paleo Diet For Athletes: A nutritional formula for peak athletic performance retails at $15.95.

There may be an increase in grocery expenses due to the requirement to purchase more fresh produce, seafood and lean meat.

Loren Cordain Video


  • Higher intakes of protein reduce appetite and increase metabolism. High protein also prevents loss of lean muscle.
  • Emphasizes fruit and vegetables.
  • Intake of essential fatty acids will be high on this diet.
  • May be beneficial for dieters who have difficulty with carbohydrate cravings and blood glucose imbalances.
  • Will improve and reduce the risk of developing many diseases and disorders such as diabetes, heart disease and cancer.
  • Produces a net alkaline load on the kidneys, which helps to reduce the loss of calcium and preserve bone tissue, which may reduce the risk of osteoporosis.
  • Provides six weeks of sample menus.
  • Does not require counting or measuring.


  • Highly restrictive and will require a great deal of commitment from the dieter. Eliminates many favorite foods such as pasta, bread, potatoes and desserts.
  • May be socially disruptive. Difficult to eat out or at social occasions.
  • May be an initial withdrawal period when dieters commence the diet due to eliminating coffee, sugar, alcohol and refined carbohydrates.
  • Diet is based on speculation to some degree, as it is impossible to be certain what exactly our Paleolithic ancestors ate.
  • Recommends diet soda, which is contradictory to the philosophy of the diet.
  • Will require careful planning to ensure that calcium is adequately supplied due to the absence of dairy products.
  • Not suitable for vegans or vegetarians.

Alternate Paleolithic Diet: Primal Blueprint

An alternate to Lee Cordain’s diet is The Primal Blueprint written by Mark Sisson. It is also based on the concept of eating foods that were available to our Paleolithic ancestors because this is the diet that our genes are designed for, but it also involves addressing other lifestyle factors that have an important influence on our health and our ability to maintain an optimal physique.

There are ten major paleolithic principles of The Primal Blueprint

  1. Eat lots of animals, insects and plants.
  2. Move around a lot at a slow pace
  3. Lift heavy things
  4. Run really fast every once in a while
  5. Get lot’s of sleep
  6. Play
  7. Get some sunlight every day
  8. Avoid trauma
  9. Avoid poisonous things
  10. Use your mind

Primal Blueprint says that most popular diets look at daily calorie intake as being the major factor in our ability to lose weight. It also points out how most diet gurus generally prescribe one-size-fits-all recommendations for intakes of fats, protein and carbs.

However according to this paleolithic diet, this goes against our natural functioning because “our genes are accustomed to the way our ancestors ate: intermittently, sporadically, sometimes in large quantities, and sometimes not at all for days”. While the author acknowledges the importance of portion control he suggests that rather than measuring portions at each meal it is better to monitor your long-term intake over a week or more.

This approach also makes it more practical to follow an eating plan for weight loss because it can allow for occasional splurges and variations in our appetite and energy levels. Sisson says that the Primal Blueprint is “about understanding the effects that certain foods and exercise have on your body and then being able to make informed choices.

Could Be Difficult to Follow for Some

If dieters commit to The Paleo Diet it or the Paleo Answer can certainly be very effective for weight loss and will reduce the risk of diseases that are associated with obesity and the modern western diet.

However it may be difficult to follow especially in the initial stages and many people will experience unpleasant reactions such as fatigue, headaches and cravings. Usually these disappear after several weeks and from that point on The Paleo Diet is generally very easy for the majority of dieters to adhere to.

See Also:– A quick online assessment to see if a Paleo Diet is right for you.

By Mizpah Matus B.Hlth.Sc(Hons)

  • Cordain, L. (2012). AARP The Paleo Diet Revised: Lose Weight and Get Healthy by Eating the Foods You Were Designed to Eat. John Wiley Sons.
  • Cordain, L., Friel, J. The Paleo Diet for Athletes: The Ancient Nutritional Formula for Peak Athletic Performance. Rodale.
  • Frassetto, L. A., Schloetter, M., Mietus-Synder, M., Morris, R. C., Sebastian, A. (2009). Metabolic and physiologic improvements from consuming a paleolithic, hunter-gatherer type diet. European journal of clinical nutrition, 63(8), 947-955. link
  • Österdahl, M., Kocturk, T., Koochek, A., Wändell, P. E. (2007). Effects of a short-term intervention with a paleolithic diet in healthy volunteers. European journal of clinical nutrition, 62(5), 682-685. link
  • Talreja, D. (2014). TCT-117 Impact of a Paleolithic Diet on Modifiable Cardiovascular Risk Factors. Journal of the American College of Cardiology, 64(11_S). link

Last Reviewed: January 16, 2018

Watch the video: Paleo Diet Food List (August 2022).